"""Constants and default configurations"""

from pathlib import Path

AWS_DIR = Path(__file__).resolve().parents[2]


def _aws_path(*parts: str) -> Path:
    """Build paths anchored to the aws package directory."""
    return AWS_DIR.joinpath(*parts)

DEFAULT_EXPORT_DIR = _aws_path('aws_billing_exports')


# Environment configurations
ENVIRONMENTS = {
    'nonprod': {
        'dataset_name': 'gcp-digital-bi.aws_nonprod_billing_native',
        'output_dir': DEFAULT_EXPORT_DIR,
        'file_prefix': 'aws',
        'exclude_recent_days': 2,
        'table_pattern': '{account_id}_aws_billing_data',
        'cost_field': 'line_item_unblended_cost',
        'product_field': 'line_item_product_code',
        'date_field': 'line_item_usage_start_date',
        'supports_tags': False
    },
    'shared': {
        'dataset_name': 'gcp-digital-bi.aws_nonprod_billing_native',
        'output_dir': DEFAULT_EXPORT_DIR,
        'file_prefix': 'aws_shared',
        'exclude_recent_days': 2,
        'table_pattern': '{account_id}_aws_billing_data',
        'cost_field': 'line_item_unblended_cost',
        'product_field': 'line_item_product_code',
        'date_field': 'line_item_usage_start_date',
        'supports_tags': True
    },
    'prod': {
        'dataset_name': 'gcp-digital-bi.aws_prod_billing',
        'output_dir': DEFAULT_EXPORT_DIR,
        'file_prefix': 'aws_prod',
        'exclude_recent_days': 2,
        'cost_field': 'line_item_unblended_cost',
        'product_field': 'product_product_name',
        'date_field': 'line_item_usage_start_date',
        'supports_tags': True
    }
}

# Default settings
DEFAULT_SETTINGS = {
    'cache_expiry_hours': 24,
    'max_workers': 5,
    'batch_size': 10000,
    'chunk_size': 50000,
    'account_details_file': str(_aws_path('aws_account_details.csv')),
    'default_exclude_recent_days': 2,
    'awsBillingCutoverDate': '2025-10-01',
    'awsBillingNoPayerDataset': 'gcp-digital-bi.aws_billing_no_payer',
    'awsCur2ProductField': 'product_servicecode',
    'awsCur2RegionField': 'product_region_code',
    'awsLineItemTypeInclude': ['Usage'],
    'awsLineItemTypeExclude': [
        'Tax',
        'Credit',
        'Refund',
        'Fee',
        'RIFee',
        'SavingsPlanNegation'
    ],
    'enableAccountScopedServiceMonitor': False,
    'enableUntaggedTagMonitor': False,
    'accountScopedServiceMonitorEnvironments': ['prod'],
    'accountScopedServiceMonitorServices': [
        'Amazon GuardDuty',
        'AWS Config',
        'AWS CloudTrail',
        'AWS Audit Manager'
    ],
    'untaggedTagMonitorEnvironments': ['prod'],
    'untaggedTagMonitorAccounts': [],
    'untaggedTagMonitorMinCost': 0.0,
    'untaggedTagMonitorIgnoredServices': []
}

# Analysis thresholds
DEFAULT_THRESHOLDS = {
    'account_warning': 1.5,
    'account_critical': 2.0,
    'service_warning': 1.5,
    'service_critical': 2.0,
    'min_cost_threshold': 100.0
}

# Date format
DATE_FORMAT = '%Y-%m-%d'
MONTH_FORMAT = '%Y-%m'

# BigQuery settings
BQ_TIMEOUT = 300
BQ_MAX_RESULTS = 100000